1992564113 has 4 divisors (see below), whose sum is σ = 1993269300. Its totient is φ = 1991858928.

The previous prime is 1992564089. The next prime is 1992564131. The reversal of 1992564113 is 3114652991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3114652991 = 151 ⋅20626841.

It can be written as a sum of positive squares in 2 ways, for example, as 187333969 + 1805230144 = 13687^2 + 42488^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992564113 - 2¹⁶ = 1992498577 is a prime.

It is a super-3 number, since 3×1992564113³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1992564163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348338 + ... + 354011.

It is an arithmetic number, because the mean of its divisors is an integer number (498317325).

Almost surely, 2^1992564113 is an apocalyptic number.

It is an amenable number.

1992564113 is a deficient number, since it is larger than the sum of its proper divisors (705187).

1992564113 is an equidigital number, since it uses as much as digits as its factorization.

1992564113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705186.

The product of its digits is 58320, while the sum is 41.

The square root of 1992564113 is about 44638.1463884871. The cubic root of 1992564113 is about 1258.3576723486.

The spelling of 1992564113 in words is "one billion, nine hundred ninety-two million, five hundred sixty-four thousand, one hundred thirteen".